List questions from order-theory

Published on 05 Jun 2014 - 21:48

37

Views

Show that If $C$ is a chain in $X$ then $f(C)$ is also chain in $Y$.

Published on 05 Jun 2014 - 22:21

45

Views

Proving that $\overline{([a,b],\le)}=\overline{([c,d],\le)}$, i.e., the order types of two closed intervals are the same

Published on 06 Jun 2014 - 12:37

64

Views

Are all preorders implication relations?

Published on 07 Jun 2014 - 0:16

63

Views

Showing a set is well-ordered

Published on 08 Jun 2014 - 14:47

1.3k

Views

Left & right adjoints in the context of posets.

Published on 08 Jun 2014 - 15:07

357

Views

Left & right adjoints in the context of complete lattices.

Published on 08 Jun 2014 - 18:36

115

Views

Why are frames called "frames"?

Published on 10 Jun 2014 - 12:45

134

Views

Is this proof legal?

Published on 10 Jun 2014 - 13:47

386

Views

Greatest lower and least upper bounds for a set of pairs

Published on 28 Mar 2026 - 20:07

93

Views

Principal order filters on a POSET

Published on 11 Jun 2014 - 0:32

737

Views

Order Type of $\mathbb Z_+ \times \{1,2\}$ and $\{1,2\} \times \mathbb Z_+$

Published on 14 Jun 2014 - 12:36

188

Views

Are surjective order-homomorphisms necessarily complete lattice homomorphisms?

Published on 25 Mar 2026 - 23:10

948

Views

Antisymmetric relation ("strong" vs "weak")

Published on 28 Mar 2026 - 20:03

180

Views

Finitely generated ordered monoids and noetherian subsets

Published on 25 Mar 2026 - 16:05

List Question

How to prove that $x\leq f(x)$ if f order isomorphic?

Show that If $C$ is a chain in $X$ then $f(C)$ is also chain in $Y$.

Proving that $\overline{([a,b],\le)}=\overline{([c,d],\le)}$, i.e., the order types of two closed intervals are the same

Are all preorders implication relations?

Showing a set is well-ordered

Left & right adjoints in the context of posets.

Left & right adjoints in the context of complete lattices.

Why are frames called "frames"?

Is this proof legal?

Greatest lower and least upper bounds for a set of pairs

Principal order filters on a POSET

Order Type of $\mathbb Z_+ \times \{1,2\}$ and $\{1,2\} \times \mathbb Z_+$

Are surjective order-homomorphisms necessarily complete lattice homomorphisms?

Antisymmetric relation ("strong" vs "weak")

Finitely generated ordered monoids and noetherian subsets

Trending Questions

Popular # Hahtags

Popular Questions